Thanks for your suggestion. but, I'm so sorry, could you please give me the download link for japanese generic firmware. I can't get the complete parts as you mentions above. May be I'll try both NTT Docomo & KDDI generic firmware.
Trim Area contains a lot of important informations, including network calibration. But if you've restored original trim area, all should be ok. Did you flashed your phone after repair with correct firmware? If no, do it please. Make sure that for C6603 phone you are using C6603 firmware, not C6602 for example.
Is it possible to use Trim Area from other xperia C6603 for my xperia c6603?
Trim Area contains a lot of important informations, including network calibration. But if you've restored original trim area, all should be ok. Did you flashed your phone after repair with correct firmware? If no, do it please. Make sure that for C6603 phone you are using C6603 firmware, not C6602 for example.
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